CN204187648U - A kind ofly automatically prevent back cigarette device for boiler waste gas process - Google Patents

A kind ofly automatically prevent back cigarette device for boiler waste gas process Download PDF

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Publication number
CN204187648U
CN204187648U CN201420634873.3U CN201420634873U CN204187648U CN 204187648 U CN204187648 U CN 204187648U CN 201420634873 U CN201420634873 U CN 201420634873U CN 204187648 U CN204187648 U CN 204187648U
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CN
China
Prior art keywords
boiler
rectangular tube
baffle plate
pipeline
waste gas
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420634873.3U
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Chinese (zh)
Inventor
高叶根
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Individual
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Individual
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Priority to CN201420634873.3U priority Critical patent/CN204187648U/en
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Publication of CN204187648U publication Critical patent/CN204187648U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of energy-saving type boiler emission-control equipment, particularly a kind ofly automatically prevents back cigarette device for boiler waste gas process, belongs to emission-control equipment field.It comprises boiler, air-introduced machine, pipeline and dust-removal and desulfurizing denitrating tower, dust-removal and desulfurizing denitrating tower is connected with boiler by pipeline, air-introduced machine is arranged near boiler end, control the waste gas of boiler discharge by pipeline flow-direction dust-removal and desulfurizing denitrating tower, for the automatic of boiler waste gas process, this kind prevents back that cigarette device also comprises air-valve and rectangular tube, rectangular tube is wherein one section of pipeline, air-valve comprises baffle plate, upper end and the rectangular tube upper end of baffle plate are rotationally connected, the oblique lower end dropping on rectangular tube, the lower end of baffle plate, baffle plate is partial to dust-removal and desulfurizing denitrating tower end and is obliquely installed, rectangular tube seals by baffle plate.The utility model overall construction design is reasonable, and structure is simple, can realize Automated condtrol and prevent back cigarette, long service life, easy to maintenance.

Description

A kind ofly automatically prevent back cigarette device for boiler waste gas process
Technical field
The utility model relates to a kind of energy-saving type boiler emission-control equipment, particularly a kind ofly automatically prevents back cigarette device for boiler waste gas process, belongs to emission-control equipment field.
Background technology
Along with the development of society, the discharge capacity of industrial waste gas is increasing, just be directly discharged in air if industrial enterprise does not process these waste gas, the content of the poisonous and harmful substances in air and fine particle will be made to increase, cause air to be subject to polluting, affecting health, the discharge capacity therefore controlling waste gas has become one of society environmental problem needing solution badly to the pollution of environment.
In prior art, exhaust-gas treatment for boiler commonly uses dust-removal and desulfurizing denitrating tower to carry out exhaust-gas treatment, the method adopted directly passes in dust-removal and desulfurizing denitrating tower by pipeline by the waste gas of boiler, a corresponding dust-removal and desulfurizing denitrating tower of boiler, and for some large-sized boiler factories, there is multiple stage boiler, if the corresponding dust-removal and desulfurizing denitrating tower of every platform boiler, then cause the waste of the energy, resource.For these problems, there is part boiler factory to adopt multiple stage boiler to use a dust-removal and desulfurizing denitrating tower to carry out exhaust-gas treatment simultaneously, the pipeline that each boiler is corresponding interconnects, in order to prevent wherein, a boiler can not from going back to the boiler room of cigarette to other in another pipeline while carrying waste gas to dust-removal and desulfurizing denitrating tower, have employed motor-driven valve to control the through or closed of pipeline, but adopt this kind of scheme can make while boiler combustion gas, the motor-driven valve of correspondence must be opened, and when boiler quits work, then need motor-driven valve to close, prevent smoke backflow.Although adopt this kind of method can economize energy, troublesome poeration, this motor-driven valve easily damages, and maintenance difficult.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, and provide a kind of reasonable in design, structure automatically back prevent cigarette device simply for boiler waste gas process, what this was used for boiler waste gas process prevents back that cigarette device can the open and close of autocontrol valve automatically.
The technical scheme in the invention for solving the above technical problem is: a kind ofly automatically prevent back cigarette device for boiler waste gas process, comprise boiler, air-introduced machine, pipeline and dust-removal and desulfurizing denitrating tower, described dust-removal and desulfurizing denitrating tower is connected with boiler by pipeline, air-introduced machine is arranged near boiler end, control the waste gas of boiler discharge by pipeline flow-direction dust-removal and desulfurizing denitrating tower, it is characterized in that: also comprise air-valve and rectangular tube, described rectangular tube is wherein one section of pipeline, described air-valve comprises baffle plate, upper end and the described rectangular tube upper end of described baffle plate are rotationally connected, the oblique lower end dropping on described rectangular tube, the lower end of described baffle plate, described baffle plate is partial to described dust-removal and desulfurizing denitrating tower end and is obliquely installed, described rectangular tube seals by described baffle plate.
Further, the utility model comprises at least two the above boilers, and described boiler is all connected with described dust-removal and desulfurizing denitrating tower by independently pipeline, and is all furnished with independently air-introduced machine, air-valve and rectangular tube.
Further, gemel connection is passed through in the upper end of described baffle plate of the present utility model and the upper end of described rectangular tube.
Further, the angle of baffle plate described in the utility model and described rectangular tube upper end is 30 degree to 60 degree.
The utility model compared with prior art, has the following advantages and effect: 1, overall construction design is reasonable, and structure is simple; 2, Automated condtrol can be realized and prevent back cigarette; 3, long service life; 4, easy to maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the wind valve structure schematic diagram of the utility model embodiment.
In accompanying drawing: 11 is boiler one, and 12 is boiler two; 21 is pipeline one, and 22 is pipeline two; 31 is air-introduced machine one, and 32 is air-introduced machine two; 4 is rectangular tube, and 41 is rectangular tube one, and 42 is rectangular tube two; 5 is air-valve, and 51 is air-valve one, and 52 is air-valve two; 6 is baffle plate, and 61 is baffle plate one, and 62 is baffle plate two; 7 is dust-removal and desulfurizing denitrating tower; 8 is pipeline three; 9 is hinge.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail, and following examples are that the utility model is not limited to following examples to explanation of the present utility model.
See Fig. 1-Fig. 2, the present embodiment comprises two boilers, is respectively boiler 1 and boiler 2 12, also comprises a dust-removal and desulfurizing denitrating tower 7.
One end of pipeline 1 is connected through with boiler one, and one end of pipeline 2 22 is connected through with boiler two, and the other end of pipeline 1 and the other end of pipeline 2 22 are connected merging by pipeline 38 and are connected through with dust-removal and desulfurizing denitrating tower 7.Air-introduced machine 1 is arranged near boiler 1 end, controls the waste gas streams of boiler 1 discharge to dust-removal and desulfurizing denitrating tower 7 end; Air-introduced machine 2 32 is arranged near boiler 2 12 end, controls the waste gas streams of boiler 2 12 discharge to dust-removal and desulfurizing denitrating tower 7 end.
Rectangular tube 4 in the present embodiment comprises rectangular tube 1 and rectangular tube 2 42, and rectangular tube 1 is wherein one section of pipeline 1, is connected through with pipeline 1; Rectangular tube 2 42 is wherein one section of pipeline 2 22, is connected through with pipeline 2 22.
Be provided with air-valve 5 in rectangular tube 4, baffle plate 6 upper end of air-valve 5 is all rotationally connected by the upper end of hinge 9 with rectangular tube 4 with rectangular tube 4; The lower end of baffle plate 6 is partial to dust-removal and desulfurizing denitrating tower 7 end and is obliquely installed, and rectangular tube 4 can be sealed when rectangular tube 4 lower end is dropped in the lower end of baffle plate 6.Baffle plate 6 is 30 degree to 60 degree with the angle of rectangular tube 4 upper end, and preferably 45 degree, now the automatic control effect of baffle plate 6 is best.
The course of work of the present embodiment and operation principle are: when boiler 1 works, air-introduced machine 1 is also started working, air-introduced machine 1 is to the inner air intake of pipeline 1, the waste gas that boiler 1 produces is blowed to dust-removal and desulfurizing denitrating tower 7 direction, when waste gas is through rectangular tube 1 time, due to the effect of wind-force, the baffle plate 1 of air-valve 1 can be blown afloat, and now waste gas is arrived dust-removal and desulfurizing denitrating tower 7 inside through piping 38 carried out exhaust-gas treatment by rectangular tube 1 smoothly; And if now boiler 2 12 for treating duty, because pipeline 1 and pipeline 2 22 are interconnected through, part waste gas can be refluxed to boiler direction by pipeline 2 22, when waste gas arrives rectangular tube 2 42, because the baffle plate 2 62 of air-valve 2 52 is subject to self gravitation effect, the lower end that rectangular tube 2 42 can be dropped in its lower end is in connection status, baffle plate 2 62 is owing to being arranged to tilt to dust-removal and desulfurizing denitrating tower 7 direction, now pipeline 2 22 seals by baffle plate 2 62, then waste gas cannot enter to boiler 2 12 inside by baffle plate 2 62, serves and prevents back cigarette effect.
When boiler 1 and boiler 2 12 all normally work, baffle plate 1 and baffle plate 2 62 are all blown afloat, and the waste gas that now boiler 1 and boiler 2 12 produce dirt all normally can pass into dust-removal and desulfurizing denitrating tower 7 inside and carry out exhaust-gas treatment; When wherein any boiler quits work, then the baffle plate of its correspondence can be subject to the Action of Gravity Field of self, and rectangular tube 4 lower end can be dropped in the lower end of baffle plate 6, prevents the exhaust gases being subject to an other boiler, plays the effect automatically controlling to prevent back cigarette.
Although the utility model with embodiment openly as above; but it is also not used to limit protection domain of the present utility model; any technical staff being familiar with this technology, not departing from the change and retouching done in design of the present utility model and scope, all should belong to protection domain of the present utility model.

Claims (4)

1. prevent back cigarette device for the automatic of boiler waste gas process for one kind, comprise boiler, air-introduced machine, pipeline and dust-removal and desulfurizing denitrating tower, described dust-removal and desulfurizing denitrating tower is connected with boiler by pipeline, air-introduced machine is arranged near boiler end, control the waste gas of boiler discharge by pipeline flow-direction dust-removal and desulfurizing denitrating tower, it is characterized in that: also comprise air-valve and rectangular tube, described rectangular tube is wherein one section of pipeline, described air-valve comprises baffle plate, upper end and the described rectangular tube upper end of described baffle plate are rotationally connected, the oblique lower end dropping on described rectangular tube, the lower end of described baffle plate, described baffle plate is partial to described dust-removal and desulfurizing denitrating tower end and is obliquely installed, described rectangular tube seals by described baffle plate.
2. according to claim 1ly automatically prevent back cigarette device for boiler waste gas process, it is characterized in that: comprise at least two the above boilers, described boiler is all connected with described dust-removal and desulfurizing denitrating tower by independently pipeline, and is all furnished with independently air-introduced machine, air-valve and rectangular tube.
3. according to claim 1 and 2ly automatically prevent back cigarette device for boiler waste gas process, it is characterized in that: gemel connection is passed through in the upper end of described baffle plate and the upper end of described rectangular tube.
4. according to claim 3ly automatically prevent back cigarette device for boiler waste gas process, it is characterized in that: the angle of described baffle plate and described rectangular tube upper end is 30 degree to 60 degree.
CN201420634873.3U 2014-10-29 2014-10-29 A kind ofly automatically prevent back cigarette device for boiler waste gas process Expired - Fee Related CN204187648U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420634873.3U CN204187648U (en) 2014-10-29 2014-10-29 A kind ofly automatically prevent back cigarette device for boiler waste gas process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420634873.3U CN204187648U (en) 2014-10-29 2014-10-29 A kind ofly automatically prevent back cigarette device for boiler waste gas process

Publications (1)

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CN204187648U true CN204187648U (en) 2015-03-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106693597A (en) * 2017-01-09 2017-05-24 湖南华润电力鲤鱼江有限公司 Fan system
CN111810978A (en) * 2020-07-20 2020-10-23 山东博然电力科技有限公司 Flue gas heat exchanger switching device of two boilers based on heat self-adjustment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106693597A (en) * 2017-01-09 2017-05-24 湖南华润电力鲤鱼江有限公司 Fan system
CN111810978A (en) * 2020-07-20 2020-10-23 山东博然电力科技有限公司 Flue gas heat exchanger switching device of two boilers based on heat self-adjustment

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150304

Termination date: 20171029

CF01 Termination of patent right due to non-payment of annual fee